You’re walking out of the store with your hands full and you press the button on your key fob to unlock your Hyundai. Nothing happens. It seems you have a dead battery. Let us show you how to fix that. Here’s out step-by-step guide for changing a dead battery on a Hyundai Smart Key fob. For more visual learners, you can skip to the bottom for the video tutorial. Keys
Not Working? Replacing your Hyundai key fob’s battery is straightforward. All you need is a replacement CR 2032 3V battery. A 5-pack of them usually costs around $3-$5. You will be touching a motherboard during this process, so it’s recommended that you also wear latex gloves to avoid accidental damage. And you’re done! To test your Hyundai Smart Key, press any of the buttons. A small red light above the unlock button should flash if everything was done correctly.Changing a Hyundai Smart Key Fob Battery: Step-by-Step Instructions & Video
Guide
Changing Your Hyundai Key Fob Battery
Video Tutorial
Is Your Smart Key Still Not Working?
If your Hyundai Smart Key still isn’t working, schedule a service appointment. It may be something other than a dead battery. If you have any questions, give us a call. We’ll be happy to help.
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Hyundai Santa Fe Owners Manual
Battery replacement
A smart key battery should last for several years, but if the smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use your smart key or replace the battery, contact an authorized HYUNDAI dealer.
1. Remove the mechanical key.
2. Pry open the rear cover.
3. Replace the battery with a new battery (CR2032). When replacing the battery, make sure the battery position.
4. Install the battery in the reverse order of removal.
- The smart key is designed to give you years of trouble-free use, however it can malfunction if exposed to moisture or static electricity. If you are unsure how to use or replace the battery, contact an authorized HYUNDAI dealer.
- Using the wrong battery can cause the smart key to malfunction. Be sure to use the correct battery.
- To avoid damaging the smart key, don't drop it, get it wet, or expose it to heat or sunlight.
- An inappropriately disposed battery can be harmful to the environment and human health. Dispose the battery according to your local law(s) or regulation.
CAUTION - Smart key damage
Do not drop, get wet or expose the smart key to heat or sunlight, or it will be damaged.
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